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General Buick Tech / Happy Birthday, David!
« Last post by Steve Wood on Today at 01:39:45 PM »
How is the car coming?  Gonna be time soon to put your annual 50k's on it! :cheers: :cheers: :cheers:
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General Buick Tech / Re: Powermaster issues
« Last post by Steve Wood on Today at 09:59:14 AM »
Ed's 1/4" is at the pedal.

here is a link that will explain how to adjust the clearance between the booster pushrod and the m/c piston if it is adjustable (yours is probably not).  I found some of the replacement boosters are.  The .020-.040" at the cylinder will give you the 1/4" approximately at the pedal.  https://www.jalopyjournal.com/forum/threads/brake-booster-push-rod.817123/

I would follow Ed's suggestion first and check how much fluid is coming out the bleeders with each stroke of the pedal.  Collapsed hoses cause more problems that most realize.
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General Buick Tech / Re: Powermaster issues
« Last post by ULYCYC on Today at 09:00:03 AM »
Forget about the booster for now and make sure the hydraulics are good in the brake system. Master, proportioning valve,  wheel cyls, calipers and rubber/hard lines have no air and working good.  Make sure your rear brakes are adjusted and not hanging on a frozen emergency brake cable. After that check and make sure your booster rod is not too long and holding the booster down a little. It's been awhile but I think you need 1/4" free play but look it up.  
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General Buick Tech / Re: Powermaster issues
« Last post by IL KIM on January 15 2021, 11:22:18 PM »
Yes agree with everything you said Steve. Blowing from booster side or sucking from engine side, the check valve I received from the vacuum conversion kit is bad. The Cardone M/C I got had issues bench bleeding the secondary port - hardly flowed fluid during bench bleed. The proportioning valve I bought separately would not turn off the dash brake light. Only thing I havenít replaced yet is the booster and not sure if itís bad or not yet.  I have to drive it or buy a vacuum pump....
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General Buick Tech / Re: Powermaster issues
« Last post by Steve Wood on January 15 2021, 10:33:35 PM »
I am not sure what you are saying.  You should not be able to blow thru the check valve from the engine side but you should be able to suck thru it from the engine side.

I have always bought check valves off the Help display.  There is a grommet in the booster where the check valve plugs in and it should not be cracked so leaks can occur around the outside of the valve.

If you take a vacuum pump and draw vacuum thru the check valve and pump long enuf to build up a decent vacuum, when you stop pumping, the gauge on the pump should indicate the vacuum is not going away but is holding steady for awhile.

If you cannot pull a vacuum on the gauge on the pump, then there is leak in the booster.

All the cars I have installed vacuum brakes on used parts that I bought from the wrecking yard and were used.  They still work.  I replaced the check valve just for the heck of it but I think I have only found one bad valve in the last 30 years.

I think we posted a few links on checking the set up but there are many more if you were confused.  In recent years, I have seen more problems with master cylinders right out of the box than anything and these are usually easy to figure out because the cylinder will not bench bleed correctly.

Some of the newer boosters have had adjustable push rods on them and/or spacers that may be needed to get the proper throw on the master cylinder piston.  I ran into this when I decided to install new brakes on my '69 Camaro when I was getting it ready to sell.

The '89 TTA had vacuum brakes which puts the lie to those that claim one cannot safely use vacuum brakes on a Regal.  There were not magic or different parts on the TTA.

I believe some of the later cars used a metric hose on the line to the booster which is slightly different from the 3/8's hose that was typically used.






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General Buick Tech / Re: Powermaster issues
« Last post by IL KIM on January 15 2021, 07:54:16 PM »
Update: I ordered an $27 AC Delco booster check valve with a 2 year warranty. Tired of bad parts out of the box. It finally came and it flows real easy when I blow through it but the hose end is too large in diameter for the hose.

SO I then bought a Dorman off the help shelve carried at Advanced and Autozone. tís hard to blow through the valve - nothing close to the AC Delco.  Doesnít feel right when installed, or the booster is bad; feels lethargic on subsequent brake pedal applies.  I hope the booster is good but canít drive the car with all this snow.

I keep thinking it woulda been so much easier just getting a rebuilt Powermaster but wanted to put an end to brake issues. Itís not a difficult conversion if parts were all good. Oh, The 89 Pontiac Turbo Trans Am check valve also has a larger nipple and 86 Regal V8 check valve does not show up at Advanced. The saga continues and Iím done venting. Thanks for listening.
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IHADAV8 Playground / Re: covid and the 2020 census-
« Last post by Steve Wood on January 15 2021, 01:02:51 PM »
Quote from: wmsonta
Quote from: Steve Wood on January 14 2021, 10:21:36 AM12% is the increase of deaths over the prior year...include s all forms of death.  Nowhere did it claim covid was killing 12% of the population. Covid kills all year long and not mainly in the "flu season" hence the death rate in general has gone up 12% in comparison to prior years.Uh-huh, you are now caught where I was. There is no increase in deaths from all causes. There is no statistical difference up or down, in the last decade. None.
To make it worse, starting in April 2020, I checked total deaths per month until November in comparison to the same month in the previous 5 yrs. No statistical difference. There was no pandemic except in the apparently bogus covid numbers. Probably, the reason for HR 6435.
https://www.congress.gov/bill/116th-congress/house-bill/6435
There is an incredible media blackout, but I will eventually find the text. As a guess, it will probably limit liability for politicians, state and local governments. Dunno.
No, I am not caught up where you were.  The CDC numbers and I do not agree at all with your beliefs.  
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IHADAV8 Playground / Re: covid and the 2020 census-
« Last post by Steve Wood on January 15 2021, 01:00:18 PM »
 As of December 15, no actual date had been set for the actual release due to both the Covid delays and Trump's complaints about the census.  Here is another article dated 12/31/2020 on the matter.

Again, however, I fail to understand the relevancy of the census to the increase in deaths from 2019 to 2020.  The Census is for a ten year period and the CDC does not use it for it's death numbers.  The CDC uses the number of deaths reported via death records.  The Census is another diversion in the discussion and is not germane to Covid.
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IHADAV8 Playground / Re: covid and the 2020 census-
« Last post by wmsonta on January 15 2021, 12:07:13 PM »
What does 100% apple juice, Coca-Cola, the fleshy part of some fruits, paw paws, have in common?
Answer-they will all test positive for covid using a PCR or RT-PCR test.
https://twitter.com/SebRoss4/status/1323986287607631872

A rather long video, but it has an interview with the now deceased inventor of PCR tests. PCR tests were designed to find people who would then be blood tested for HIV.
https://www.youtube.com/watch?v=6ny9nNFHQsY&feature=youtu.be

Without PCR testing, they could not have sold this 'pandemic' to anyone. At 45 cycles, there 97+% false positives. At 30 cycles, there is 50+% false positives. The last study (about 2wks ago), a well know eastern US college got 300 students that were asymptomatic, PCR positive for covid. They were retested using the other 2 types of tests. The PCR tests were found to be 100% false positive.

I can furnish links to probably a dozen such studies over the last 8 mos. Identical results.
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IHADAV8 Playground / Re: covid and the 2020 census-
« Last post by wmsonta on January 15 2021, 11:41:43 AM »
Another thought, to my knowledge the 2020 census has not been released officially.  But, ignoring that, I don't know what it really has to do with Covid per se.  Death certificates to death certificates are what my numbers from the CDC refer to and it will be a few more weeks before that becomes a bit more definitive due to the usual  civil servant messing around that always drags things out.
The census became available to all 12/31/2020. The census death and birth numbers, by federal law, are the most accurate numbers.
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